[Windows Central Question]

I installed windows insider app and choose fast ring after that i didn't get WP10 update,

[ven07]

Which phone do you own?

[Chintan Gohel]

I installed windows insider app and choose fast ring after that i didn't get WP10 update,

it's no longer available for unsupported phones: Windows 10 Mobile Insider Preview Device Reminder - Microsoft Community

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[Maurizio Troso]

I installed windows insider app and choose fast ring after that i didn't get WP10 update,

Exit Insider program (3 dots -> Leave program, then uninstall the app).
Then, check it out there:

http://forums.windowscentral.com/win...2x-series.html

[Vijay Shejal]

Did you install w10 on lumia720?

[xandros9]

Did you install w10 on lumia720?

Likely not.